Description
The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering – moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory.
- Available in Natural Aluminum Muffler with Carbon End Cap
- Massive Power gains throughout the RPM range.
- Huge weight savings
- New RTS (Rapid Tuning System)
- FMF uses the highest quality proprietary blend of alloy grade titanium made especially to our standards.

![I 4.1 RCT Ti Ful System RMZ250 2019-23 W/R C-CAP MegaBomb F[]](https://boydsassets.specd.nz/uploads/2026/09/25e151aa-40ef-4cf8-841c-ff3daf67e7c4-jpg.webp)
![I 4.1 RCT Ti Ful System RMZ250 2019-23 W/R C-CAP MegaBomb F[]](https://boydsassets.specd.nz/uploads/2026/09/b98ef266-ac69-4cb8-841a-23e3380178c0-jpg.webp)

Reviews
There are no reviews yet.